Global Patent Index - EP 3923585 A4

EP 3923585 A4 20211215 - VIDEO TRANSCODING METHOD AND DEVICE

Title (en)

VIDEO TRANSCODING METHOD AND DEVICE

Title (de)

VERFAHREN UND VORRICHTUNG ZUR TRANSCODIERUNG VON VIDEO

Title (fr)

PROCÉDÉ ET DISPOSITIF DE TRANSCODAGE DE VIDÉO

Publication

EP 3923585 A4 20211215 (EN)

Application

EP 20792515 A 20200619

Priority

  • CN 202010365039 A 20200430
  • CN 2020097172 W 20200619

Abstract (en)

[origin: EP3923585A1] The present disclosure discloses a method and device for transcoding a video, which belongs to the video processing technology. The method includes: acquiring a target frame image of a video to be transcoded, and generating a global feature map of the target frame image based on a feature extraction module of a semantic segmentation model (101); performing feature segmentation on the global feature map based on a feature segmentation module of the semantic segmentation model, and determining a multi-level ROI of the target frame image (102); and using different transcoding rates to transcode the multi-level ROI and other regions of the target frame image respectively (103).

IPC 8 full level

G06N 3/08 (2006.01); G06T 7/10 (2017.01); H04N 21/234 (2011.01); H04N 21/2343 (2011.01)

CPC (source: CN EP)

H04N 19/167 (2014.11 - CN); H04N 19/40 (2014.11 - CN); H04N 19/70 (2014.11 - CN); H04N 21/23418 (2013.01 - EP); H04N 21/2343 (2013.01 - EP); H04N 21/234345 (2013.01 - EP); G06N 3/045 (2023.01 - EP); G06N 3/08 (2013.01 - EP)

Citation (search report)

  • [Y] US 2019073553 A1 20190307 - YAO ANBANG [CN], et al
  • [Y] US 2019357615 A1 20191128 - KOH CHONG JIN [US], et al
  • [YA] BERTINI M ET AL: "An Integrated Framework for Semantic Annotation and Adaptation", MULTIMEDIA TOOLS AND APPLICATIONS, KLUWER ACADEMIC PUBLISHERS, BO, vol. 26, no. 3, 1 August 2005 (2005-08-01), pages 345 - 363, XP019213875, ISSN: 1573-7721, DOI: 10.1007/S11042-005-0893-Y
  • [YA] CAI CHUNLEI ET AL: "End-to-End Optimized ROI Image Compression", IEEE TRANSACTIONS ON IMAGE PROCESSING, IEE SERVICE CENTER , PISCATAWAY , NJ, US, vol. 29, 25 December 2019 (2019-12-25), pages 3442 - 3457, XP011769267, ISSN: 1057-7149, [retrieved on 20200129], DOI: 10.1109/TIP.2019.2960869
  • [Y] PENG JUNRAN ET AL: "POD: Practical Object Detection With Scale-Sensitive Network", 2019 IEEE/CVF INTERNATIONAL CONFERENCE ON COMPUTER VISION (ICCV), IEEE, 27 October 2019 (2019-10-27), pages 9606 - 9615, XP033723632, DOI: 10.1109/ICCV.2019.00970
  • [Y] CAVALLARO A ET AL: "Semantic segmentation and description for video transcoding", PROCEEDINGS OF THE 2003 INTERNATIONAL CONFERENCE ON MULTIMEDIA AND EXPO: 6 - 9 JULY 2003, BALTIMORE MARRIOTT WATERFRONT HOTEL, BALTIMORE, MARYLAND, USA, IEEE OPERATIONS CENTER, US, vol. 3, 6 July 2003 (2003-07-06), pages 597, XP032963473, ISBN: 978-0-7803-7965-7, DOI: 10.1109/ICME.2003.1221382
  • See references of WO 2021217829A1

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3923585 A1 20211215; EP 3923585 A4 20211215; CN 111629212 A 20200904; CN 111629212 B 20230120; WO 2021217829 A1 20211104

DOCDB simple family (application)

EP 20792515 A 20200619; CN 2020097172 W 20200619; CN 202010365039 A 20200430